Need help to get VGA-to-TV working with Radeon 9250

[Sebastian]

Hi,

I'm trying to setup a Clone session. I use MonitorLayout "CRT,CRT". In
short:

Section "Monitor"
    Identifier    "Panasonic TV"
    HorizSync     15 - 16
    VertRefresh   49.9-50.1
ModeLine "720x576" 14.625 720 762 818 936 576 579 607 625 composite interlace +hsync -vsync
EndSection

Section "Device"
    Identifier    "Connect3D Radeon 9250 on TV"
    Driver        "radeon"
    Option        "DynamicClocks" "false"
    Option        "MergedFB" "true"
    Option        "CRT2HSync" "15-16"
    Option        "CRT2VRefresh" "49.9-50.1"
    Option        "CRT2Position" "Clone"
    Option        "MonitorLayout" "CRT,CRT"
    Option        "IgnoreEDID" "true"
    Option        "ForceMinDotClock" "13MHz"
    Option        "NoMergedXinerama" "true"
EndSection

Section "Screen"
    Identifier    "TV screen"
    Device        "Connect3D Radeon 9250 on TV"
    Monitor       "Panasonic TV"
    DefaultDepth  24
    SubSection "Display"
      Depth       24
      Modes       "720x576"
    EndSubSection
EndSection

Section "ServerLayout"
    Identifier    "TV layout"
    Screen        "TV screen"
    InputDevice   "Mouse1" "CorePointer"
    InputDevice   "Keyboard1" "CoreKeyboard"
EndSection

Xorg.1.log:

(**) RADEON(0): MonitorLayout Option:
        Monitor1--Type CRT, Monitor2--Type CRT

(II) RADEON(0):
(II) RADEON(0): Primary:
 Monitor   -- CRT
 Connector -- VGA
 DAC Type  -- TVDAC/ExtDAC
 TMDS Type -- NONE
 DDC Type  -- NONE
(II) RADEON(0): Secondary:
 Monitor   -- CRT
 Connector -- VGA
 DAC Type  -- Primary
 TMDS Type -- NONE
 DDC Type  -- VGA_DDC

...

(II) RADEON(0): Total of 1 CRTC2 modes found for MergedFB------------
(II) RADEON(0): Modes for CRT1: ********************
(--) RADEON(0): Virtual size is 720x576 (pitch 768)
(**) RADEON(0): *Mode "720x576": 14.6 MHz, 15.6 kHz, 50.1 Hz (I)
(II) RADEON(0): Modeline "720x576"   14.62  720 762 818 936  576 579 607
625 interlace composite +hsync -vsync
(II) RADEON(0): Modes for CRT2: ********************
(--) RADEON(0): Virtual size is 720x576 (pitch 768)
(**) RADEON(0): *Mode "720x576": 14.6 MHz, 15.6 kHz, 50.1 Hz (I)
(II) RADEON(0): Modeline "720x576"   14.62  720 762 818 936  576 579 607
625 interlace composite +hsync -vsync
(II) RADEON(0): Generating MergedFB mode list
(II) RADEON(0): No MetaModes given, linking first modes by default
(II) RADEON(0): Merged 720x576 and 720x576 to 720x576 (Clone)
(--) RADEON(0): MergedFB: Virtual width 720
(--) RADEON(0): MergedFB: Virtual height 576

That seems like X is driving both screen at the same modeline. The flat
panel goes blank of course because I tricked X to believe there's no
TMDS on the primary but a CRT. The TV doesn't go dark anymore. But the
picture moves from top to bottom and it seems the picture is doubled (on
picture of the same other). That makes me think that it doesn't really
use the modeline it said it does.

Is this the end of the story? I mean can I try anything else, except
booting without the flat panel connected?

Why can't X just disable the flat panel and drive the VGA out if I want
it to? Is this a hardware or a software limitation?

Thanks

Sebastian
-- 
"When the going gets weird, the weird turn pro." (HST)
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